Lubricating device



Dec. 26, 1933. J. L. CREVELING 1,941,139

LUBRICATING DEVICE Filed Sept. 17, 1931 2 Sheets-Sheet 2 A TTORNEY.

Patented Dec. 26, 1933 UNITED STATES PATENT OFFICE LUBRICATING DEVICEApplication September 17, 1931 Serial No. 563,413

12 Claims.

This invention relates to lubrication devices and more particularly to atype of lubricating pump having a part formed by a container adapted totransport lubricant from the factory to the place at which the lubricantis to be used and to store the lubricant until it is needed.

One of the objects of my invention is to provide a pump formed partly bya container within which the lubricant may be inclosed at the factory,and within which the lubricant may be kept closed until it is pumped tothe bearing or bearings to be lubricated.

Further objects will be apparent from a reading of the subjoinedspecification and claims and from a consideration of the accompanyingdrawmgs.

In order to explain the invention more clearly several embodimentsthereof are shown in said drawings, in which:

Fig. 1 is a sectional view of a lubricant container constructedaccording to my invention;

Fig. 2 is a sectional view of the container of Fig. 1 shown associatedwith a gun or pump parts to form an operative gun or pump;

Fig. 3 is a bottom plan view of the container shown in Fig. 1;

Fig. 4 is a view in section of a different form of gun formed partly bya container;

Fig. 5 is a view in section of the lower end closure for the containershown in Fig. 4 as it appears before the upper part of the gun isattached to the container;

Fig. 6 is a view in elevation of a split nut forming a part of the gunshown in Fig. 4;

Fig. '7 is a view in section of a modified form of pump head to beassociated with a container; and

Fig. 8-is a view in section of a pump head formed by stamping ordrawing.

In general the container or cartridge shown in illustrating my inventioncomprises a substantially cylindrical member 2 formed with open ends 3and 4 and adapted to be associated with a pump head 5 shown in Fig. 2.The upper end of the container 2 has the edge turned outwardly to form aflange 6 extending around the circumference and the lower end 4 has theedge turned inwardly to form a flange '7. The lower end is normallyclosed by an end closure or piston 8 and the upper end by a closure 9.The closure 8 is adapted, when the container has been attached to a gunto form a part of the gun, to serve as a piston therefor. It issubstantially circular in shape, and has formed adjacent to itsperiphery or circumference, an upwardly extending flange 10 and adownwardly extending flange 11 formed by parallel folds of the closureitself, both arranged substantially perpendicular to the main bodythereof. The outer fold extends both above and below the plane of themain body, and the inner fold 11 is connected to the outer fold 10 by areverse bend 12. The inner fold 11 extends wholly below the plane of themain body and is connected to the main body of the piston by aperpendicular bend 13. In the center of the closure 8 there is formed anindentation 14 which may be square or of any other suitable shape exceptcircular, into which indentation a non-circular split nut 15 (shownsquare) is adapted to be positioned. The closure 8, within thedepression 14, is formed with a circular softened portion 16, (shownsubstantially in the center of the depression), which is adapted to bepushed out by a screw 17 attached to the pump head 5, the lower end ofthe screw being adapted to be inserted through the opening formedthereby. The screw 1'? is then threaded throughthe nut 15 and by furtherrotation of the screw, the nut 15 is drawn up into the depression andthe closure 8 becomes firmly locked on the end of the screw. Thereaftercontinued rotation of the screw causes the closure 8 to move up withinthe container 2 and act as a follower for the lubricant or as a pistonto force lubricant out of the gun to the fitting to be lubricated, thestructure of the folds insuring a tight fit against the sides of thecontainer. Thus the lubricant is never removed from the container'at anytime until it is being forced into the fitting by the pump. The head 5may be se-' cured to the upper part of the container by a tapered fit asshown, or by any other suitable means making a tight fit, such as abayonet joint.

In the modification shown in Fig. 4, I provide a jacket 103 which isadapted to fit over the carton 102 and protect the relatively thincarton against the pressures exerted in the manual operation of the pumpor gun. The lower ends of the jacket 103 are curved inwardly as shown tocontact with the sides of the container 102. The

end closure 104 of the carton 102 is not integral with the sides of thecarton and is adapted to serve as a piston for forcing the lubricantupwardly. The jacket or shell 103 has rotatably mounted in an axialbearing a threaded rod 105, adapted to be pushed downwardly through thelubricant in he container 102 and through an opening 106 (shown mostclearly in Fig. 5) in the closure 104, the lower end of the rod 105being adapted to knock out a stamped knockout disk or cap 107.Thereafter, a split nut 108, formed of two semi-circular portions 109and 110 connected by a spring 111 is pushed up in a pocket formed in aflange 114 until the nut 108 contacts with the lower end of the rod 105.Rotation of the rod 105 draws the nut 108 up on the end of the rod 105and thus secures the closure 104 to the end of the rod. It is to benoted that the split nut 109 is provided with lugs 112 and 113, adaptedto fit in notches formed in the flange 114, which is secured to thelower end of the closure 104. The closure 104 may be formed with aperipheral groove and a string packing 115 inserted therein, if desired,and preferably a felt washer 116 is inserted between the closure 104 andthe knockout disk 107.

His believed that the operation of this form of lubricating gun or pumpwill be clear from the above description. The container 102 filled withlubricant serves as a material part of the gun. The cap 103 is placedover the container 2b and the rod 105 is forced downwardly through thelubricant. The knockout portion or cap 107 is pushed out by the lowerend of the rod 105, and the split nut 108 is inserted partly within theflange 114. Rotation of the handle 101 of the rod 105 causes the splitnut 108 tobe drawn up and firmly locked in the opening, and furtherrotation causes the closure 104 to move upwardly and act as a piston forforcing lubricant out of the carton to a high pressure gun B. After thecontainer 102 is emptied, a few reverse turns of the handle 101 causesthe nut 108 to back out and the spring separates the parts 109 and 110,and the container may be removed and thrown away.

In Fig. 7 is illustrated a modified form of pump head by means of whichlubricant may be resiliently forced from a factory container. Thereinthe rod 105a passes through a hole 115 formed in the cover 116. Said rod1050. is provided with threads and has formed thereon or suitablysecured thereto below said cover a stop member 117. It has secured tothe upper end of handle 101a and has above the cover 116, but below thehandle an inverted cap 118 against which the upper end of a spring 119is adapted to bear. The lower end of the spring 119 bears against thetop of the cover 116 and both the spring 119 and the cap 118 arecontained in a well or flange 121 formed on top of the cap. As shown inFig. 8 the head 103a including the skirt 121 and handle 122 may beformed by stamping or drawing, the handle being punched out.

In operating this form of pump, it is unnecessary for the operator tocontinuously rotate the handle 1010;. After the head has been secured tothe container and the lower end of the rod 105a has been secured to thelower closure of the container (which thus forms a piston) in a mannersimilar to that previously described in connection with Figs. 4-6,inclusive, a few more turns of the handle compresses the lubricant inthe container and then the spring 119. The spring 119, though ofsuflicient strength to deliver lubricant to the high pressure gun B isnot strong enoughto force lubricant through it, and therefore the rod103a passes down through the piston corresponding to the closure 104,compressing the spring. Operation of the high pressure gun B now forceslubricant out inasmuch as the spring 119 is effective to deliverlubricant until the parts return to the position shown in Fig. 7. Thecompression of the spring may then be repeated.

It is to be understood that the above described embodiments of theinvention are for the purpose of illustration only and various changesmay be made therein without departing from the spirit and scope of theinvention.

I claim:

1. A lubricating device comprising a container having one end open, andhaving said end formed with an inturnecl flange, and a closure for saidend comprising a piston having the portion adjacent to the peripherythereof bent to form a pair of folds with a flange formed by said folds,the flange of the folds telescoping into the inturned flange of thecontainer.

2. In a lubrication device, a container, a 010- sure for one end of saidcontainer formed with an opening and having a flange surrounding saidopening, a felt washer within said flange surrounding said opening, anda knockout disk positioned within said flange and contacting with saidfelt washer.

3. In a lubrication device, a container comprising a cylinder, an endclosure for one end of said cylinder formed with an openingtherethrough, an annular flange secured to said closure around saidopening and extending outwardly from said closure, and a disk arrangedto close said opening and secured outside of said closure only byfriction with saidflange.

4. A device for use with a lubricant container and a lubricant pump,comprising a cap formed with an opening therein, a threaded rod insertedthrough said opening, a handle associated with said cap, and aprotecting apron extending downward adjacent to said handle and adaptedto protect one side of said container. and provide a firm portion bywhich .said device may be grasped and on which force may be exerted foroperating said lubricant pump.

5. In a lubrication device, an original lubricant package comprisingcylindrical container, a follower for said container comprising acircular disk having an opening formed therein, a rod for moving saidfollower having one end extending through said opening, a split nut onsaid rod for fastening said follower to said rod against movement in onedirection with respect thereto, and means on the follower for detachablysecuring the same with respect to said nut.

6. In a lubrication device a container, a rod inserted in said containerand formed with external threads, a closure for one end of saidcontainer having a cylindrical pocket formed therein, and a split nutinserted in said pocket and threaded onto said rod.

7. For use with a lubricant container having a piston associatedtherewith, pump parts comprising a head for the container formed with anopening, a rod formed with threads adapted to be screwed into thepiston, and a spring bearing on said head and adapted to exert forceagainst a portion of said rod.

8. In combination, a lubricant pump having a piston drive screw, a splitnut on said screw, a cylindrical body having one end adapted forcommunication with said pump, and a piston slidably mounted in saidcylindrical body forming a movable closure for the opposite end there-'of, said piston having -a non-circular depression formed in its outerand exposed 'end wall for receiving said nut, the central wall of saiddepression having an opening through which said drive screw may extend.

9. In combination, a lubricant pump including a piston drive screw, asplit nut on said screw, a cylindrical body having one end adapted forcommunication with said pump, and a piston slidably mounted in saidcylindrical body forming a movable closure for the opposite endthereof,'said piston having a non-circular depression formed in itsouter and exposed end wall for receiving said split nut, the centralwall of said depression having a frangible portion.

10. In combination, a supporting body including a manually drivenmember, a substantially cylindrical body adapted to be mounted upon saidsupporting body, and a piston slidably mounted in said cylindrical bodyand forming a movable closure for the opposite end thereof, said pistonhaving an opening through which said manually driven member may extend,said piston being further formed with an irregular depression in itsouter and exposed end wall about said opening for receiving saidmanually driven member.

11. In combination, a supporting body including a manually drivenmember, a'member engageable with said manually driven member, asubstantially cylindrical body adapted to be mounted upon saidsupporting body, a piston slidably mounted in said cylindrical bodyforming a movable closure for the opposite end thereof, said pistonhaving an opening therethrough through which said manually driven membermay extend, and means providing a socket on the outer wall of saidpiston about said opening for receiving said member engageable with saidmanually driven member.

12. A replaceable lubricant container for use with a supporting bodyincluding a manually driven member, comprising, a substantiallycylindrical body adapted to be mounted upon said supporting body, apiston slidably mounted in said cylindrical body forming a movableclosure for the opposite end thereof, said piston, having an openingtherethrough through which said manually driven member may extend, meansproviding a socket on the outer wall of said piston about said openingfor receiving a member engageable with said manually driven member, anda plug adapted to be received in said socket normally to close saidopening.

JOHN L. 'CREVELING.

